Manfolding



May 8, 1934. L c. ANTRI 1,957,928

MANIFOLDING Filed March 12, 1932 2 Sheets-Sheet l MGM I B Q o I Gttcmeg L. C. ANTRIM May 8, 1934.

MANIFOLDI NG Filed March 12, 1932 2 Sheets-Sheet 2 3maentor attorney Patented May are captive iLouis 3. dntrim, New York, N. Y... assignor to Autographic Register Company, lfiloboken, .l 3., a corporation of New Jersey Application March 12, 193%,Serial No. 598,378

to Claims. (on. rev-12c) This invention relates to typewriting machines, and more particularly, to means for facilitating the making of multiple copies, and is an improvement on the invention described and claimed in my prior application, Serial No. 579,390, filed December '7, 1931.

In said application I have disclosed means for holding between worksheets superposed on the platen a transfer or carbon disk so that the latter will roll between the worksheets as the rela tive movement between the latter and the type mechanism occurs during the writing of a line.

There is also disclosed in said application means for causing the transfer disk to be raised and lowered as it rolls, so that all parts of the working margin of the disk will used.

It has been found in practice that even though the transfer disk is raised and lowered relative to the line of writing so that the impressions follow an undulating line around the peripheral zone of the disk, if the line of writing happened to be shorter than the length. of the circumferential working zone a segment of the disk will be left unconsumed, for, in rolling backward through the worksheets to begin a new line, the disk would be given substantially the same angular movement that it received in rolling forwardly. This unused portion of the disk would constitute a waste and unnecessary loss. Further, if the major portion of the writing operations are performed at oneside of the worksheets, the carbon copies made on the worksheets beyond said portion would be darker than the others because of the underlying segments of the transfer disks not having'been used so much. The carbon copies would therefore have an unsightly appearance resulting from light impressions on one side and dark impressions on the other.

Likewise, this two-tone printing may occur when the carbon disk .has shifted relative to the line of writing, as it may should it be temporarily removed from between the worksheets, for the adjustment of the latter, for instance, and then be replaced.

To avoid these disadvantages, the present invention provides means for holding the transfer disks against retrograde or backward rotation when the platen or type carriage, according to the kind of typewriter employed, is moved to position to begin a new line. In this way the first impressions of a new line on the transfer disk begin substantially where the last impressions of the previous line left or.

In the preferred form of this invention, this is accomplished by providing a sort of ratchet connection between the transfer disk and the arm which carries it, and this ratchet connection is advantageously formed by a tooth or projection on the disk carrier adapted to engage one of a plurality of holes or other physical alterations provided in the transfer disk.

Other features and advantages will hereinafter appear.

In the accompanying drawings-'- Figure 1 is a front elevation of a typewrite showing my invention applied thereto.

Fig. 2 is a diagrammatic view showing the relative movements of the transfer disk relative to the platen.

Fig. 3 is a sectional view through the platen of the typewriter, taken on the line 3-3 of Fig. 1, showing the relation between the worksheet strips and the carbon disks of the present invention.

Fig. 4 is a view of the end ofthe carbon-carrying arm showing the carbon disk of the present invention applied thereto, and held against retrograde movement by the fingers on the arm.

Fig. 5-is a view of the carbon-carrying arm itself. I i

Fig. 6 is a view of the carbon disk made in accordance with the present invention, showing it in the form at present preferred.

Fig. 7 is a transverse sectional view taken on the line 7--7 of Fig. 4, the tooth or projection on the carbon-marrying arm being located in one of the apertures .01 holes in the carbon disk.

Fig. 8 is a similar view, but shows the way in which the material of the, disk flexes past the projection or tooth on the carbon arm when the disk is rotating forwardly.

Fig. 9 is a detail view of. the means for causing the impressions of the transfer disks to follow an undulating line. 95

The typewriter shown in the accompanying drawings is of the kind having a cylindrical platen 10 mounted in a traveling carriage 11 so that various portions of the platen may be carried across a. printing point 12 at which the type bars 13 strike through an inking ribbon 14. The platen supports, in writing position,worksheets 15 which may he leaves or continuous strips according to the kind of work to be performed.

Of course, it should be understood that, in the broader aspects of this invention, it is immaterial whether the lines of writing are produced as a gesiligltt of a traveling platen or traveling type as e As in my copending application, Serial No.

worksheets through transfer disks 16 carried by arms 17 mounted on a suitable support 18 at one side of the typewriter. The transfer disks each have a central aperture 19 adapted to be placed over a fingerpr arm 20 and rest on a stud 21 on the carbon carrying arm 1'7. The disks are placed between the superposed worksheet strips and have their marginal portions located in the line of writing, as shown in Fig. 3, so that the impressions of the type bars 13 will be reproduced on the under worksheets 15 through the medium of the disks. As the, writing of a line progresses from one side to the other, relative movement is pro-- duced between the worksheet strips al'ld .t;he car bon s, as-by the traveling of the platen 10 with the carriage 11, and the disks 16 by frictional engagement with the worksheet strips at the line fol writing rotate, presenting always a difierent portion of its surface to the line of writing.

- As this rolling operation continues, and in accordance with the invention described and claimed in my copending application Serial No. 579,390, the carbon-carrying arni 17 is raised and lowered, thus causing the impressions to follow an undulating line in the working margin of the transfer strip as the disk rotates.

i This is accomplished through the medium of an eccentric roller 22, see Fig. 3, mounted on an arm 23 which, with an arm 24, forms a frame 25 for the carbon arm 17. This .is pivoted for movemerit on the support 18 about the axis of a screw 26, see Fig. i. The roller 22-is provided with a ratchet 2? (see Fig. 9) which is engaged by a pawl 31 so that durlngthe return -movement or the platen to position to begin a new line the roller will be held against turning so that a new undulating line of impressions will start on the 1. er disk at the beginning of the next line of ting. in this way; distribution or the impressions, and hence coption roi ,the transfer material carried by each dish i6, is: distributed over a relatively wide circerential margin of the disk.

in order to reduce the frequency with which the operator is required to remove the old disk and replace a fresh one, the disk should be made tilt as large in diameter as conditions, such as the particular design of the typewriting machine, allows. It is practicable with most writers to have the disk of such diameter that its circumference would be greater than thelength of the line of writing which could be performed on the typewriter.

lif this were done, with the device as disclosed in my prior application, Serial No. 579,390, there would be left an unused portion or segment of the disk, the extent of which would depend upon the difierence between the length of the line of writing and the circumference oi the disk, so long as the dish remains between the worksheet strips, for the arcuate relation between the disk and the worksheets remains substantially constant regardless oi thehumber of times that the platen travels in letter-fe s: direction 6! is returned.

' 579,390, impressions are produced on the under Again, the portion of the disk operating at the end oi'the line of writing would not be consumed uniformly because in typewriting all of the lines do not end at exactly the same place and, as a consequence, the ends of the exceptionally long lines in the carbon copies will be made with darker or heavier impressions, thereby accentuating the unavoidably unbalanced appearance of the page.

This unused segment of the transfer disk not only represents a loss in material, but makes it necessary for the operator to more frequently replace the disks, and if it were not otherwise avoidable it would be more economical to have the disk of a circumference equalling the length of the line of writing.

To avoid all these difficulties and disadvantages and yet permit a large transfer disk to beemployed, the present invention provides means for holding the transfer disks against backward 'i-m rotation during the return movement between the disks and the platen and work, so that the next line of impressions will always begin proceed angularly around the disk from i tially the same point at which the last line impressions ended.

This is accomplished in the preferred form or this invention, which is the one illustrated herein, by providing the carbon-carrying arm 17 with means for gripping the disk and holding it against my? backward rotation. is conveniently done by providing on the finger as a tooth or proiection 28 directed to the left and slightly bent to the rear and by provig each fer disk with holes or other physical terations 29 ar= no ranged in a circular line concentric with the bear ins hole 19 and at such a from. the con ter that they are capable of being entered by the tooth 2t.

The tooth 28 is located below a ar 1 1g; backing portion so oi the carbon-c i7, and when a line is being written and the travels clocas viewed in Fig. 4i, the tooth 28 flexes the material of the slightly to the rear as indicated in Fig. 8 but this does not re- 5 tard. its free rotation. When, however, the disk attempts to move coimterclockwise, that is m theiretrograde tion indicated by the in Fig. i, the tooth 2d enters one of the ape 29 and holds the movement. The 1 entce oi the tooth e aperture $9 is aresured by reason of the he of the lower end of the carbon disk it forwar to e of writing, as shown in Fig. 3.

Thus it be seen that ,r return move- 31% menu oi the age, the 1:- oer disk id is held age 1.: substantial rotation and a the next line of writing win begin at is ithe e angular a wtlOlll on the carbon disk as where the last line left ofi. continue we the entire disk ca bll'ons of e to be utilised.

02f course, the first impon of the nent'line or writing seldom would occur at exactly the point on the in: for disk as the last .x the previous line or writing because of e vertical movement or the disk under the iniim oi the eccentric roller 22 and of some slight backward rotation which the disk may have before the tooth enters the aperture 39. wever, the consumption or the disk 28 wlllbe con tinuous around its circumference and in an undulating line starting at anbanlfltnite number m an, 0 in practice that the annular no Mil over a Widen- 1 Ethos row of apertures 29 increases the flexibility of the disk and facilitates .such flexion thereof as is;

shown in 'Fig. 3. -The apertures 29, moreover, serve as pilot, holes in the manufacture and processing of the disks. 7 i I Variations and modifications may be made within the scope of this invention andportions of the improvements may be used without others.

Having thus described the invention, what isclaimed as new and forwhich it is desired to obtain Letters Patent, is:-

" mechanism; a transfer'dis'kadapted to roll between the worksheets superposed on the.v platen 1 1. In' a typewriting machine, a platen; type and in the line of writing during the letterspace'relative movement between the worksheets and the type mechanism; a carrier for said disk; and means on the carrier and on the disk for holding the disk against rotation during .retum and a ratchet and pawl connection between 'the carrier and disk for holding the disk against ro- -tation during return movements betweenthe worksheets and the type mechanism; v

3. In a typewritr'ng machine, a platen; type mechanism; a transferfdisk adapted to rollbetween the worksheets superposed on theplaten and 'in the line of writing during the letter-space relative movement between the worksheets and tween the worksheets superposed on the platen the type mechanism; a carrier for said disk; and a pawl on the carrier and a'ratchetv on the disk for holding the disk against rotation during return movements between the worksheets and the type mechanism. Y

4. In a typewriting machine, a platen; type mechanism; a transfer disk adapted to roll between the worksheets superposed onthe platen and in the line of writing during the letter-space relative movement between the worksheets and,

the type mechanism; a carrier for said disk; and a "proiection'on the carrier cooperating with a plurality of holes in thedisk to hold the disk against rotation during retum movements between the worksheets'and the type mechanism. 5. Ina typewriting machine, a platen; type mechanism; a transfer disk adapted to roll bedisk and prevent retrograde rotation. or '-'the latter, said am having a tooth directed toward said I having an aperture 'in and means forholding the relative movement between the worksheets and the type mechanism; a, carrier for said disk; and a" rigid arm on the carrier cooperating with a plurality of holes in the disk to hold the-disk against retrograde rotation, the am having a tooth directed toward being -flexed toward the; arm when in manifold-- ing relation with the worksheets'so that the tooth enters one of said holes when the disk is given retrograde rotation.

6. An arm for holding a of writing, said arm having a bearing on whichv the transfer disk may be freely rotated as' a result of the tractive engagement of'the edge of the disk'with the adjacent worksheet strips when theplaten is moved in letter-feed direction; and means on the arm engaging the disk to gripv the H disk and prevent retrograde rotation of the lat ter during the return movements of the platen.- 7. Anarm for holding a transfer disk between worksheets superposed on a platen in the line of writing and having means adapted to grip the disk and adapted to enter one'of aplurality of I holes in the disk when the disk is given retrograde rotation.

8. A transfer means for manifolding machines i, comprising a circular disk-of transfer material having an aperture in the center-forming a bearing about which it maybe rotated; and apl u. rality' of apertures placed ina circular line sub-- stantially concentric with the axis of the disk for the purpose described. i

- 9. A transfer means for manifolding machines comprising a circular disk of transfer-material the center forming .a' bear- 'which it maybe rotated; and a'plurality of physical alterations placed in a circular line substantially concentric withthe axis of the disk for the purpose described. I

10. In a manifolding device for a typewriter having a cylindrical platen; means for rotatably supporting disks of transfer material between portions of superposed worksheets which are carried by the platen and located at the line of writing of the typewriter, said disks being rotated as a line is being written; means for automatically rasing and lowering the-transfer disks relative tothe line of writing as the line i's'being written;

transfer disks'against ing about retrograde rotation." p

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said holes and the disk i 7 transfer disk between "worksheets superposedon a platen,in the line nov 

